Resi Panel Swap

An EM disconnect would not be required if you're just changing the existing panel.

Welcome to the Forum.
 
Sounds like those are service conductors from meter to “new” panel. If service equipment is being changed then an emergency disconnect is required.
 
Since the OP is asking about New Jersey here is what is required:

Emergency Disconnects for One- and Two-Family Dwellings As with any adoption of a new code, new requirements come along with it. The 2020 edition of the National Electrical Code (NEC/2020), aka NFPA 70, was adopted on September 6, 2022, at N.J.A.C. 5:23-3.16. With it came Article
230.85, Emergency Disconnects, and applies to new services on one- and two-family dwellings only. For those of you familiar with the building codes, please do not apply these definitions. Remember, the NEC/2020 has specific definitions in Article 100 and this is where you would find how Article 230.85 applies to these types of buildings:
A “Dwelling, One-Family” means, “A building that consists solely of one dwelling unit.” While a “Dwelling, Two-Family”
means, “A building that consists solely of two dwelling units”​
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The word “solely” above means that Article 230.85 applies to one- and two-family detached dwellings and would not
apply to townhouses/rowhomes or multi-family buildings. When it comes to a Rehabilitation project, you will note that materials and methods at N.J.A.C. 5:23-6.8(d) does not delete this section; thus, it would be included per the scope of a project, as outlined at N.J.A.C. 5:23-6.2(b). This requirement would be limited to complete service changes and upgrades to these types of homes. “Complete” implies that the project includes new service conductors, service entrance conductors and service equipment. One of the early questions we have received, pertains to whether a separate ground and neutral would be required when installing these disconnects, similar to the installations of sub-panels. Officials should take note that the NEC offers three options for compliance. The only method that requires the disconnect to be marked as “Service Equipment” would be the only one that would require the installation of separate grounds and neutrals.​
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Ninosparkz1 said:
What about additional ground rod and ground bridge?
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Little Bill said:
If you're not touching anything outside, then nothing needs to be done other than change the panel.
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So you are saying, If the existing system was lacking a proper or inadequate GES It doesn't need to be corrected with just a change of the panel with no upgrade?
Some of these old systems only had a water pipe ground that has been "upgraded" to non-metallic plumbing to the street and in most cases it cannot be verified one way or the other the grounding is actually present, at least not without an expensive ground resistance test.
 
Fred B said:
So you are saying, If the existing system was lacking a proper or inadequate GES It doesn't need to be corrected with just a change of the panel with no upgrade?
Some of these old systems only had a water pipe ground that has been "upgraded" to non-metallic plumbing to the street and in most cases it cannot be verified one way or the other the grounding is actually present, at least not without an expensive ground resistance test.
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In NJ the UCC requires that the GES be updated anytime service equipment is replaced.
 
Fred B said:
So you are saying, If the existing system was lacking a proper or inadequate GES It doesn't need to be corrected with just a change of the panel with no upgrade?
Some of these old systems only had a water pipe ground that has been "upgraded" to non-metallic plumbing to the street and in most cases it cannot be verified one way or the other the grounding is actually present, at least not without an expensive ground resistance test.
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Nothing is looked at here on just a panel change other than the work done on the panel itself. Only other thing required is smoke alarms. These can be battery operated.
Lack of a GES, or an inadequate one, is hardly a danger in low voltages such as 120V/240V.
 
infinity said:
Ken do you have any documentation for this?
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Each section of the rehab code, for each type of work, has the same wording, this being a panel replacement would be considered a renovation. This can be found in 5:23-6.5

7. Any replacement to the electrical service equipment shall require that the grounding electrode system be updated to the requirements of Article 250 Part III of the electrical subcode. (Electrical)
 
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